191D01

191D01 - P0440

Information saved in
DME

Fault code
191D01 - P0440

Fault text
Tank safety valve: malfunction

Fault description
The diagnostic function monitors the flow through the fuel
tank's EVAP vent line.

Condition for fault identification
Test condition:
The fault is recognized when there is no drop in the current
consumed by the leakage diagnosis pump.
Potential problem source(s):
- Tank EVAP evaporative emissions valve sticks in closed
position
- Obstruction in line between tank and intake manifold
Terminal condition: none
Voltage condition:
- Onboard electrical system voltage between 9 V and 16 V
Temperature condition:
- Engine warmed to normal temp, above 80 °C
Time condition:
- None
Other conditions:
- Engine ON

Condition for fault memory entry
The diagnostic fault code is logged once the fault appears
four times.

Action in service
- Replace EVAP evaporative emissions valve
- Check flow in line between intake manifold and tank and
replace as indicated

Fault effect and breakdown warning
Breakdown notice:
None
Possible apparent symptoms:
None

Driver information
Warning light:
- ECE emissions warning lamp: on
- ECE electronic engine power reduction: on
- CC message: on
- US emissions warning lamp: off
- US electronic engine power reduction: off
- CC message: none

Service instruction
None